Gasoline: The new big U.S. export

[Wild Cobra]

OK, I can't find the reference that once was. It all depends on what is used to change the octane rating of gasoline. I will still look for the reference, but it seems all I can find don't break it down by rating like in the past.

[Wild Cobra]

Gasoline isn't one molecule only. The primary paraffins range from C5H12 to C10H22. Pentane has 28.39 MJ/liter while Decane has 33.29 MJ/liter of energy density. Higher octane gasoline used to have blends that also had higher energy densities. With mandated fuel mixtures today, that might not be true any longer. Regardless, I haven't found a link to prove what was once true.

[TeyshaBlue]

So, in other words, you were incorrect. Got it.

[Borat Sagyidev]

Like CC says, don't buy the cheapest gas.

When it comes to regular vs. plus vs. premium, the difference is that most newer engines control the power with the knock sensor(s). The higher the octane of gasoline, the greater the energy density. This is what makes the difference. At today's gas prices, this energy density increase is worth the 20 cents more per gallon.

That's what I said.

OK, I can't find the reference that once was. It all depends on what is used to change the octane rating of gasoline. I will still look for the reference, but it seems all I can find don't break it down by rating like in the past.

Gasoline isn't one molecule only. The primary paraffins range from C5H12 to C10H22. Pentane has 28.39 MJ/liter while Decane has 33.29 MJ/liter of energy density. Higher octane gasoline used to have blends that also had higher energy densities. With mandated fuel mixtures today, that might not be true any longer. Regardless, I haven't found a link to prove what was once true.

Just shut up. The entire internet at your power to figure that one out and you're still a failure


Some higher octane gases have less sulfur content by design, particularly in Mexico. Less soot and high compression ratios may produce some extra work out, but you're over generalizing as usual.

Most issues with the air-fuel ratios do not arise from the knock sensor but by the oxygen sensor which controls air-fuel mix with higher variability. variable ethanol usage in gas is one of the reasons for this.

[ElNono]

^ You misquoted me.

[Wild Cobra]

Just shut up. The entire internet at your power to figure that one out and you're still a failure


Some higher octane gases have less sulfur content by design, particularly in Mexico. Less soot and high compression ratios may produce some extra work out, but you're over generalizing as usual.

Most issues with the air-fuel ratios do not arise from the knock sensor but by the oxygen sensor which controls air-fuel mix with higher variability. variable ethanol usage in gas is one of the reasons for this.

The reformulation of gasoline over the years seems to have taken the advantage out of higher octane gasoline. That's about it from what I was arguing. I will stand corrected. You however, are being an ass.

[Winehole23]

lapdog media hides the ball

[clambake]

just bought gas. $4.35.9 a gallon. diesel was at $4.39.9 a gallon.

[clambake]

i bought gas on the 14th for $4.10 a gallon. 25 cent bump in 2 days.